Slicing machine



June 26, 1928. 1,675,287 l l.. E. wAcKERLE SLICING MACHINE Filed Oct. 21. 1927 fsw/.s E. W4 cnf/u E,

Patented June 26, 1928.

UNITED STATES 1,675,287 PATENT OFFiCF..

LEWIS E. WACKERLE, 0F WAUKEGAN, ILLINOIS. ASSIGNOR TO CHICAGO HARDWARE FOUNDRY COMPANY, OF NORTH CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

SLICING MACHINE.

Application filed October 21, 1927.

This invention relates to that type of slicing machines, in which a rectangular brick of butter or the like is fed in a step by step manner to longitudinally and transversely arranged severing means, to be divided into a plurality of small piece-s of a uniform size and weight. An example of such slicing mechanism forms the subject matter of the patent to VValstead, No. 1,288,771, of Dec. 28. 1918.

The present improvement has as its object, to provide a structural formation and combination of parts and elements in a slicing machine of the described type, wherein simplicityv of construction and efficiency in action are combined with ease of operation and adjust-ment to effect a change from one size of the severed pieces to another and different size is attained in a ready and easy manner, all as will hereinafter more fully appear.

In the accompanying drawing Fig. 1, is a plan view of a slicing machine embodying the present invention.

Fig. 2, is a rear end elevation, showing the severing yoke in a position different from that shown in Fig. 1.

Fig. 8, is a detail transverse section on line 8 3, Fig. 1.

Fig. 4. is a detail longitudinal section on line 1 -4, Fig. 1.

Like reference numerals parts in the different views.

As usual in the present type of slicing machines, the stationary body or bed 1 of the mechanism is of a trough form, V shape in cross section. providing an effective support for a rectangular brick of butter or the like, as the same is intermittently fed along the bed in the cutting operation of the mechanism.

The rear end of the body 1 is of an open formation. while the forward end of the same carries a fixed rectangular frame 2, with a substantial connection of the two parts attained by attac-hing screws 3 passing through lateral lugs on the parts. And as usual in the present type of mechanisms, the frame 2 carries diagonally crossed wires 4 by which the material operated on is divided into a plurality of longitudinal sections. The wires 4 are placed under tension, with a view to effect-ive operation, by a tension screw bolt 5 of any usual arrangement. The forward face of the rectangular indicate like Serial No. 227.669.

frame 2 is of a plane form to provide a bearing face upon which the hereinafter described transverse severing wire 6 has slidmg contact in its operation of cutting the longitudinal sections of the brick of butter. etc., transversely into small pieces. I

At one side of the combined bed 1 and frame, journal ears 7 are provided for revolubly supporting the hereinafter described and longitudinally arranged ope-rating shaft 8 of the mechanism.

The feeder head 9 by which the material operated on is moved in a forward direction tothe severing wires 4 and 6, is of a rectangular plate form adapted to slide in the V shape cavity of the body or bed 1` and is provided with a rearwardly extending plate portion 10 for the support of the hereinafter described rack bar 11, with said plate portion in turn formed with tubular knuckles 12, in spaced relation. adapted to encircle the operating shaft 8 aforesaid. and provide a combined pivotal and guiding connection betweenthe feeder head 9 and the body or bed 1 of the mechanism, and so that said feeder head and its accessories can be swung into an inoperative position out of the trough of said body or bed 1, for cleaning and like functions.

The operating shaft 8 above referred to extends longitudinally of the mechanism and has greater length than such mechanism so as to afford the required extent of guidance for the feeder head. 9 and also provide a supporting means for the hereinafter described carrying yoke 13 of t-he aforesaid transverse severing wire 6. Said yoke or bow 13, is fixedly attached by a hub 13 to the forward end of the shaft 8 aforesaid, with its free end provided with a rearwardly extending bar 14. bet-Ween the rear end of which and the hub portion 13 the aforesaid severing wire 6. extends, with its proper tensioning effected by a tension screw bolt 15 aforesaid, and as shown in Fig. .1.

Manualrotation of the operating shaft 8 may be effected. b v any usual and suitable means, preferably by a handle 16 mounted on the yokeor bow 13 adjacent to its free end.

At a point adjacent to its mid-length. the operating shaft 8 carries a fixedly attached worm hub 17 of the detail construction hereinafter described, with its spiral tooth or rib 18 adapted for operated engagement with the adjacent teeth of the rack bar 11, above referred to.

The rearward extension 10 of the feeder hea-'d 9 'in addition to providing guiding and pivotal means for the feeder head as above set forth, also provides a supporting means for the rack bar 11 above referred to. In the present improvement said rack bar 11 is in the form of a detachable bar, that is preferably vformed with sets of teeth 19 and 19 in its opposite edges, with one set of teeth having a spacing different from that of the other set, so that with a reversal of the rack bar to bring one or the other of said sets of teeth into operative relation with the operating spiral 18 of the worm hub 17 aforesaid, a change from one thickness to another` in the slices to be severed is attained in simple and accurate manner. The detachable connection between the fee-der head extension 1() and the rack .bar 11 is attained by means of a headed stud or bolt 20 on the extension 10 engaging in an open slot 2l in one end of the rack bar 11 in conncction with an attaching thumb screw 22 passing through the opposite end of the rack bar and screwing into the extension 10, as illustrated more particularly in Figs. 3 and 4.

With the above described construction, the use of two or more replaceable rack bars 11, with different spacings in their rack teeth, may be provided, where an extended range in thickness in the slicing operation is desired.

The worm hub 17 above referred to is preferably of the type in which the spiral tooth 18 thereof` is formed to effect a feed of the material during each intermission of the transverse cutting operation of the mechanism. In addition said spiral tooth 18 has less than a full turn around the hub 17, so that with said space in line with the rack bar 11, the rack bar is free to be adjusted forward or backward independent of said spiral tooth.

Having thus fully described my invention what I claim and desire to secure by Let` ters Patent, is

1. The combination of a body, .an operating shaft journalled longitudinally at. the side of said body and carrying a slicing means at its forward end in operative relation to the forward end of said body, a feeder head having movement along said bodv and provided` with a rearward extension having pivotal and guiding engagement with said shaft` a rack bar removably attached to said rearward extension of the feeder head, and a worm hub secured to said shaft and having operative engagement with said rack bar4 2. The combination of a body, an operating shaft `ionrnalled longitudinally at the side of said body and carrying a slicing means at its forward end in operative relaton to the forward end of said body, a feeder head having movement along said body and provided with a rearward extension having pivotal and guiding engagement with said shaft, a reversible rack bar removably attached to said rearward eXtension of the feeder head and provided with rack teeth in its opposite edges. and a worm hub secured to said shaft and having operative engagement with said rack bar.

3. The combination of a body, an operating shaft journalled longitudinally at the side of said body and carrying a slicing means at its forward end in operative relation to the forward end of said body, a feeder head having movement along said body and provided with a rearward eXtension having pivotal and guiding engagement with said shaft, a rack bar removably attached to said rearward extension of the feeder head, and a worm hub secured to said shaft and having operative engagement with said rack bar, the attaching means for said rack bar comprising a headed stud 'and open Slot connection at one end of the rack bar and a thumb screw at the other end of said rack bar.

4. The combination of a body, an operating shaft journalled longitudinally at the side of said body and carrying a slicing means at its forward end in operative relation to the forward end of said body, a feeder head having movement along said body and provided with a rearward extension having pivotal and guiding .engagement with said shaft, a reversible rack barremovably attached to said rearward extension of the feeder head and provided with rack teeth in its opposite edges, a worm hub secured to said shaft and having operative engagement with said rack bar, the attaching means for said rack bar comprising a headed stud and open slot connection at one end of the rack bar and a thu-mb. screw at the other end of said rack bar.

5. The combination of a body, an operating shaft journalled longitudinally at the side of said body and carrying a slicing means at its forward end in operative rela! tion to the forward end of said body, a feeder head having movement along said body and provided with a rearward eXtension having pivotal and guiding engagement with said shaft, a rack bar removably attached to said .rearward extension of the feeder head, and a Worm hub secured to said shaft and having operative engagement with said rack bar, the worm hub having a spiral operating thread of a less extent than a full turn around said hub.

6. The combinatin of a body, an operating shaft journalled longitudinally at the side of said body and carrying a slicing means at its forward end in operative relation to the forward end of said body, a feeder head having movement along said body and provided with a rearward extension having pivotal and guiding engagement with said shaft, a reversible rack bar removably attached to said rearward extension of the feeder head and provided with rack teeth in its opposite edges, and a worm hub secured to said shaft and having operative engagement with said rack bar, the worm hub having a spiral operating thread of a less extent than a full turn around said hub.

7. The combination of a body, an operating shaft journalled longitudinally at the side of said body, a yoke secured to the forward end of said shaft and carrying a severing wire in operative relation to the forward end of said body, means for tensioning said wire comprising a tensioning screw mounted on said yoke longitudinally of the mechanism, a feeder head having movement along said body and provided with a rearward extension having pivotal and guiding engagement with said shaft, a rack bar removably attached to said rearward extension of the feeder head, and a Worm hub secured to said shaft and having operative engagement with said rack bar.

8. The combination of a body, an operating shaft journalled longitudinally at the side of said body, a yoke secured to the forward end of said shaft and carrying a severing wire in operative relation to the forward end of said body, means for tensioning said wire comprising a tensioning screw mounted on said yoke longitudinally of the mechanism, a feeder head having movement along said body and provided with a rearward extension having pivotal and guiding engagement with said shaft, a reversible rack bar removably attached to said rearward extension of the feeder head and provided with rack teeth in its opposite edges, and a worm hub secured to said shaft and having operative engagement with said rack bar.

In testimony whereof I hereunto afIiX my signature.

LEWIS E. VVACKERLE. 

